In outboard mode, no rudder req'd :-). As to that jetboat mod, the
engine would be low and inboard ... I myself,as mentioned, could not
tolerate the noise. As to daggerboard, I guess our styles differ ... in
a dingy/on a wind surfer on a broad reach and plane, up comes the
daggerboard ... take care though else yer rockin an rollin :-) And hey,
no boat is an investment :-)